Exhaust cut-out



E. a. DRAVER.

EXHAUST CUT-OUT. APPLICATION FILED MAY13, 192!- 1,396,410, Pawnted Nov. 8, 1921.

2 SHEETS-SHEET I.

1 7d; 17 tb rneys E. R. DRAVER.

EXHAUST CUT-OUT.

APPLICATION FILED MAY 12, 1921'.

2 SHEETS-SHEET 2.

Patented Nov. 8, 1921.

jnveniw' 575W 3 wfl wfi UNITED STATES PATENT OFFICE.

EMIL R. DBAVER, OF RICHMOND, INDIANA.

EXHAUST CUT-OUT.

Application filed Kay 13,

T 0 all whom 2'25 may concern:

Be it known that I, EMIL R. DR-AVER, a citizen of the United States, residing at Richmond, in the county of Wayne and Stateof Indiana, have invented certain new and useful Improvements in Exhaust Cut- Outs; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention provides an extremely simple, durable and highly efficient exhaust cutout for automobiles or vehicles propelled by explosive engines and, generally stated, it consists of the novel devices and combination of devices hereinafter described and defined in the claims.

The device is preferably in the form of an attachment that is capable of being easily applied to the exhaust pipe, but it may, nevertheless, be constructed as a permanent part of the exhaust pipe or other muifler. It must, of course, be applied at some place between the engine exhaust and the mufiler.

The so-called cut out device, as preferably designed, includes a coupling yoke and a supplemental pipe section that is mounted for movements to and from registration with the exhaust pipe, and which, when in registration with the exhaust pipe, gives a free unobstructed passage to the muffler, but which, when moved out of registration with the exhaust pipe, opens the exhaust pipe to directly discharge into the atmosphere. To positively out out the exhaust muffler from the exhaust, the supplemental pipe section is provided with a deflector, preferably in the form of a cup or elbow-like structure, which deflects the exhaust gases either toward one side or the other, or upward or downward into the atmosphere.

In the preferred arrangement, the supplemental exhaust pipe section and its deflecting flange or cup are integrally cast structures pivotally mounted so that, in one extreme position, said supplemental pipe section willbe in registration with the exhaust pipe and, in the other extreme position, the deflecting flange or cup will be positioned to directly receive the exhaust gases and de- Specification of Letters Patent.

1821. Serial No. 489,217.

flect the same away from the passage to the muffler. Nevertheless, said out out device may be otherwise constructed and otherwise mounted, as will hereinafter appear.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Figure 1 is a fragmentary view diagrammatically illustrating the place and manner in which the exhaust cutout device is applied to an exhaust pipe of an ordinaryautomobile;

Fig. 2 is an elevation with some parts broken away, showing the exhaust cut out applied to an exhaust pipe and muflier, as illustrated in Fig. 1;

Fig. 3 is a section taken on the line 33 of Fig. 2;

Fig. 4c is a plan view of the parts shown in Fig. 2, illustrating a slightly modified form of yoke;

Fig. 5 is a view corresponding to Fig. 2, but illustrating a modified construction;

Fig. 6 is a section on the line 66 of Fig. 5;

Fig. 7 is a .plan view corresponding to Fig.3, but illustrating a still-further modified construction;

Fig. 8 is a side elevation of the parts shown in Fig. 7 with some of the parts sectioned and with portions broken away; and

Fig. 9 is a vertical section on the line 99 of Fig. 8.

Describing first the preferred construction illustrated in Figs. 1 to 4, inclusive, the numeral 10 indicates portions of an explosive engine and the numeral 11 indicates the exhaust pipe leading therefrom and connected to an exhaustmufller 12 of the usual or any suitable construction.

In this arrangement, the exhaust pipe 11 is either cut off adjacent to the mufiler or the muffler is moved rearward so as to afford a gap that is spanned by a coupling yoke 13, which has axially alined and axially spaced sleeves 14 and 15, preferably cast integral therewith. The sleeve 14 is alined with the inlet passage 12 of the exhaust muffler and has a projecting flange rigidly secured to the adjacent head of the muffler by nut-equipped bolts 16 or otherwise. The discharge end of the exhaust pipe 11 is telescoped into the sleeve 15.

In this arrangement, the so-called supplemental exhaust pipe section 17 is cast iii-- tegral with a cup-like deflector 18, and has laterally spaced hinge lugs 19, which, by a pivot pin 20, are pivotally connected to flanges of the sleeves 14 and 15. The pivot pin 20 is so located that, when in one position, the supplemental pipe section 17 w11l be in registration with the sleeves 14 and 15 and, hence, with the exhaust pipe 11 and the muffler "passage 12*, and in, the other position, the cup-like deflector 18 will be turned into registration with the exhaust pipe and will cut out the exhaust muffler by directing the exhaust'gases laterally. The pipe section 17 is of such length that, when in an operative position, it quite closely engages between the sleeves 14 and 15 and thus becomes a supplemental section of the complete exhause pipe. The supplemental pipe section'17 has a stop lug 17, (see Flg. 3), that engages the sleeve 15 to limit its movement 'in one direction to a position in which it is in registration with the exhaust-pipe,

and the cup-like deflector 18 has a stop lug 18 that is engageable with said sleeve to limit the movement in the other direction to a position in which the pipe section 17 will be out of registration with the exhaust pipe and said deflector will be in registration or alinement with the exhaust pipe.

The combinedsleeve and deflector may be oscillated by any suitable means, but, as

shown, is arranged'to be thus operated through two oppositely extended cables 21 and 22, the form-er of which is connected to an anchored retracting spring and the latter of whichis connected to an operating lever 24 adapted to be secured in one extreme position by a latch piece 25. Of course, the 1'ever24 can be located at any suitable place,

but should be within easy reach of the driver. .The spring 23 exerts a force which will. normally hold the supplemental pipe section 17 alined with the exhaust pipe and, when the lever 24 is engaged with the latch 25,the deflector 18 will be held in its operative position.

As is evident, when the supplemental pipe section is in its operative position, the pressure of the exhaust will be equalized within the interior thereof so that such pressure will not tend to move the sleeve in either direction. In most prior exhaust devices, springs are relied upon to hold the movable out out element in one position or the other against the exhaust pressure. In the pres ent arrangement,the spring 23 is simply one means for moving the movable exhaust element 111 one dlrection, but 1s not, 1n any sense, sub ect to exhaust pressure.

' tachably clamping sections 27 and 28* held in position by nut-equipped bolts 29 and adapting the sleeves to be clamped onto axially spaced portions of the exhaust pipe 11-11, said pipe section 11 being directly connected to the muffler.

The yoke 26, of the construction illustrated in Figs. 5 and 6, is like that illustrated in Fig. 4, but in this arrangement, the supplemental pipe section 30 is cast integral with a cup-shaped deflectingfiange 31, forming a horizontally slidable element with lugs 32 slidable on a guide pin 33 secured to depending lugs 26 on the yoke 26. In this arrangement, the sliding element 30-31 is arranged to be moved from a lever 34 through a connecting link 35. y

In the construction illustrated in Figs. 7, 8 and 9, the connecting yoke comprises-a vertically disposed rectangular guide 36 that is open at top and bottom and is provided with exhaust pipe clamping sleeves 37 having detachable sections connected by clamping bolts 38, substantially as in the arrangements illustrated in Figs. 4, 5 and 6. In this arrangement, the supplemental pipe section 39 is mounted to slide vertically in the guide box 36 and is provided with a depending concave or cup-like defiector40. This cutout element 39-40 is adapted to be moved vertically by any suitable means and, as shown, will be gravity-held in its lowermost position with the pipe section 39 alined with the exhaust pipe. Downward movements of said out out element are lim ited by a stop 41 on the top of the pipe section 39, which is engageable with one of the sleeves 37, and extreme upward movement is limitedby a stop lug or'projection 42 on the deflector 40. f

The cut out device described may, as is evident, be very quickly and easily applied to automobiles or motor-propelled vehicles. To apply the same as illustrated in Figs. 1, 2 and 3, the delivery end of theexhaust pipe can be cut oil or the mufller can be moved slightly rearward so as to afford the required space vfor the supplemental pipe section. The yoke, being then bolted to the heado'f the exhaust mufiier, the mufiier will rearward so as to afford a space for the supplemental pipe section, and in this arrangement, the two sections of the exhaust pipe pro er will be rigidly connected by the yoke of t e cut out device.

Also, the sleeves of the yoke reinforce the ends of the exhaust pipe, to which they are coupled.

In actual use of these out out devices, I have found that when the supplemental pipe section is partly out of registration with the exhaust pipe and partly in registration therewith, there will be produced a sort of a horn action or low pitched tone that will sound much like a steamboat whistle. The pitch of the tone sound produced will vary somewhat with the speed of the engine and with the extent to which the supplemental pipe section is moved out of registration with the exhaust pipe; but, when the supplemental pipe section is completely out of registration with the exhaust pipe and the deflector moved into registration with a live portion of the exhaust pipe, the sound then produced will be that of an ordinary cut out.

The peculiar horn or whistle sound produced is due, at least in a very great extent, to the fact that when the supplemental pipe section is partly out of registration with the exhaust pipe, that portion thereof that is out of registration will be open to the atmosphere so that the exhaust blast may be blown through the supplemental pipe section and into the atmosphere. It is also of the utmost importance that the deflector be immediately adjacent to the supplemental pipe section so that it will come into action as soon as the supplemental pipe section is given its initial movement out of registration with the exhaust pipe; and a deflection of part of the exhaust while part thereof is being blown through the supplemental pipe section to the atmosphere, is also highly important in producing the sound necessary for use as a signal device.

The movement of the supplemental pipe section partly out of registration with the exhaust pipe contracts the inlet from the exhaust into the supplemental pipe section very much as is done in a whistle, and this, together with the other features, actually produces a loud low-pitched tone that very effectually adapts the cut out to be used as a signaling device or in lieu of a horn or siren. In producing this sound for the pur pose indicated. the cut out will be moved back and forth and the horn or whistle sound will be produced while the supplemental pipe section is moving in the vicinity of its intermediate or approximately its halfopen position.

What I claim is:

1. An exhaust attachment having axially spaced sleeves and a supplemental pipe section mounted to move laterally in a plane that transversely intersects the axis of said sleeves, said supplemental pipe section having a deflector secured thereto and located immediately adjacent to its passage and ar "ranged to connect one of said sleeves to atmospheric exhaust, whenever said supplemental section begins its movement out of registration with said sleeves.

2. The construction defined in claim 1, in which said deflector is concave and down wardly extended.

The construction defined in claim 1, in which that portion of the supplemental pipe section that is moved out of registration with the exhaust pipe is open to the atmosphere.

4. The construction defined in claim 1, in which there is a stop on the supplemental pipe section for limiting the downward movement thereof to a position in which it registers with the exhaust pipe, and there is a stop on said deflector limiting the upward movement to a position in which said deflector is in registration with the exhaust pipe and said supplemental pipe section is out of registration with said exhaust pipe.

5. The combination with an exhaust pipe having axially spaced sections, of a yoke having axially spaced sleeves connected to the adjacent ends of said pipe sections, and a supplemental pipe section mounted on said yoke and movable laterally in a plane that transversely intersects the axis of said sleeves, said supplemental pipe sections having a deflector located immediately adjacent to its passage and arranged to connect one of said sleeves to atmospheric exhaust whenever said supplemental pipe section begins its movement out of registration with said sleeves.

6. The construction defined in claim 5, in which the connection between said yoke and supplemental pipe section is a pivot, the axis of which is parallel to the axis of said sleeves.

7. An exhaust pipe attachment having axially spaced sleeves, and a supplemental pipe section mounted on a pivot whose axis is parallel to the axis of said sleeves, said pipe section being movable laterally into and out of alinement with said sleeves and having a deflector, which, when said supplemental pipe section moves out of alinement with said sleeves, moves into alinement with one of said sleeves and deflects the exhaust into the atmosphere.

8. An exhaust attachment having a pivoted supplemental pipe section movable into and out of registration with said exhaust pipe, and having a concave deflector rigidly secured thereto and movable into and out of alinement with said exhaust pipe.

9. An exhaust attachment comprising a yoke and a supplemental pipe section pivotally mounted thereon and having a rigidly secured deflector, said supplemental pipe tal pipe section 7 having an integrally section and deflector beingmovable alterformed concave or cup-shaped deflector, said nately'into and out of alinement with an sleeve being pivotally connected to said yoke 10 exhaust pipe. and movable to alternately aline said sleeve 10. An exhaust attachment comprising a and deflector with the sleevesof said yoke. yoke having axially spaced sleeves and, In testimony whereof I aifix my signature. Working between said sleeves a supplemen- EMIL R. DRAVER. 

